Spring Boot（十二）集成spring-boot-starter-mail发送邮件

项目GitHub地址：

https://github.com/FrameReserve/TrainingBoot

Spring Boot（十二）集成spring-boot-starter-mail发送邮件，标记地址：

https://github.com/FrameReserve/TrainingBoot/releases/tag/0.0.12

pom.xml

增加：

spring-boot-starter-mail

spring-boot-starter-velocity -- 模板

<!-- Email --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-mail</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-velocity</artifactId></dependency>

Spring Boot配置文件：

QQ邮箱权限需要在QQ邮箱里设置，163则不用，问题比较少。

src/main/resources/application.yml

    mail:host: smtp.163.comusername: 286352250@163.compassword: 用户密码properties:mail: smtp:auth: truetimeout: 25000

Email配置类：

后期经常使用发件人邮箱，在这统一定义。

src/main/java/com/training/core/email/EmailConfig.java

package com.training.core.email;import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
import org.springframework.stereotype.Component;@Component
public class EmailConfig {/*** 发件邮箱*/@Value("${spring.mail.username}")private String emailFrom;public String getEmailFrom() {return emailFrom;}public void setEmailFrom(String emailFrom) {this.emailFrom = emailFrom;}}

定义Email Service，三种邮件风格：

1. 发送简单邮件。

2. 发送带附件简单邮件

3. 发送模板邮件。

src/main/java/com/training/core/email/EmailService.java

package com.training.core.email;import java.io.File;
import java.util.List;
import java.util.Map;import com.training.core.dto.Pair;public interface EmailService {/*** 发送简单邮件* @param sendTo 收件人地址* @param titel  邮件标题* @param content 邮件内容*/public void sendSimpleMail(String sendTo, String titel, String content);/*** 发送简单邮件* @param sendTo 收件人地址* @param titel  邮件标题* @param content 邮件内容* @param attachments<文件名，附件> 附件列表*/public void sendAttachmentsMail(String sendTo, String titel, String content, List<Pair<String, File>> attachments);/*** 发送模板邮件* @param sendTo 收件人地址* @param titel  邮件标题* @param content<key, 内容> 邮件内容* @param attachments<文件名，附件> 附件列表*/public void sendTemplateMail(String sendTo, String titel, Map<String, Object> content, List<Pair<String, File>> attachments);}

Email Service实现类：

src/main/java/com/training/core/email/EmailServiceImpl.java

package com.training.core.email;import java.io.File;
import java.util.List;
import java.util.Map;import javax.mail.internet.MimeMessage;import org.apache.commons.collections.map.HashedMap;
import org.apache.velocity.app.VelocityEngine;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.io.FileSystemResource;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Service;
import org.springframework.ui.velocity.VelocityEngineUtils;import com.training.core.dto.Pair;
import com.training.core.exception.RuntimeServiceException;@Service
public class EmailServiceImpl implements EmailService {@Autowiredprivate EmailConfig emailConfig;@Autowiredprivate JavaMailSender mailSender;@Autowiredprivate VelocityEngine velocityEngine;public void sendSimpleMail(String sendTo, String titel, String content) {SimpleMailMessage message = new SimpleMailMessage();message.setFrom(emailConfig.getEmailFrom());message.setTo(sendTo);message.setSubject(titel);message.setText(content);mailSender.send(message);}public void sendAttachmentsMail(String sendTo, String titel, String content, List<Pair<String, File>> attachments) {MimeMessage mimeMessage = mailSender.createMimeMessage();try {MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true);helper.setFrom(emailConfig.getEmailFrom());helper.setTo(sendTo);helper.setSubject(titel);helper.setText(content);for (Pair<String, File> pair : attachments) {helper.addAttachment(pair.getLeft(), new FileSystemResource(pair.getRight()));}} catch (Exception e) {throw new RuntimeServiceException(e);}mailSender.send(mimeMessage);}public void sendInlineMail() {MimeMessage mimeMessage = mailSender.createMimeMessage();try {MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true);helper.setFrom(emailConfig.getEmailFrom());helper.setTo("286352250@163.com");helper.setSubject("主题：嵌入静态资源");helper.setText("<html><body><img src=\"cid:weixin\" ></body></html>", true);FileSystemResource file = new FileSystemResource(new File("weixin.jpg"));helper.addInline("weixin", file);} catch (Exception e) {throw new RuntimeServiceException(e);}mailSender.send(mimeMessage);}public void sendTemplateMail(String sendTo, String titel, Map<String, Object> content, List<Pair<String, File>> attachments) {MimeMessage mimeMessage = mailSender.createMimeMessage();try {MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true);helper.setFrom(emailConfig.getEmailFrom());helper.setTo(sendTo);helper.setSubject(titel);String text = VelocityEngineUtils.mergeTemplateIntoString(velocityEngine, "template.vm", "UTF-8", content);helper.setText(text, true);for (Pair<String, File> pair : attachments) {helper.addAttachment(pair.getLeft(), new FileSystemResource(pair.getRight()));}} catch (Exception e) {throw new RuntimeServiceException(e);}mailSender.send(mimeMessage);}
}

测试邮件发送：

src/main/java/com/training/email/controller/DemoEmailController.java

package com.training.email.controller;import io.swagger.annotations.ApiOperation;import javax.annotation.Resource;import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;import com.training.core.controller.BaseController;
import com.training.core.dto.ResultDataDto;
import com.training.core.email.EmailService;@RestController
@RequestMapping(value="/email")
public class DemoEmailController extends BaseController {@Resourceprivate EmailService emailService;/*** 测试邮件发送*/@ApiOperation(value="测试邮件发送", notes="getEntityById")@RequestMapping(value = "/getTestDemoEmail", method = RequestMethod.GET)public @ResponseBody ResultDataDto getEntityById() throws Exception {String sendTo = "1265400024@qq.com";String titel = "测试邮件标题";String content = "测试邮件内容";emailService.sendSimpleMail(sendTo, titel, content);return ResultDataDto.addSuccess();}
}

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